There have been 24 recent insider transactions recorded for MBX Biosciences, Inc. Common Stock (MBX), including 19 buys and 2 sells. Total insider buying was valued at $25.13M and total insider selling at $1.05M.
Notable insiders with recent activity include Smither John W, Hawryluk P. Kent, Bartram Richard. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — MBX
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-03-16 |
Smither John W |
Officer |
Unknown |
- |
- |
- |
- |
| 2026-03-13 |
Hawryluk P. Kent |
President & CEO |
Informative Buy |
18,500 |
$28.41 |
$525.66K |
486,777 |
| 2026-02-26 |
Hawryluk P. Kent |
President & CEO |
Option Exercise (Sell) |
28,768 |
$16.00 |
$460.29K |
91,668 |
| 2026-02-02 |
Hawryluk P. Kent |
President & CEO |
RSU Award |
164,500 |
$39.07 |
$6.43M |
164,500 |
| 2026-02-02 |
Bartram Richard |
Chief Financial Officer |
RSU Award |
15,000 |
- |
- |
15,000 |
| 2026-02-02 |
Azoulay Salomon |
Chief Medical Officer |
RSU Award |
15,000 |
- |
- |
15,000 |
| 2026-01-20 |
Stelzer Laurie |
Officer |
Unknown |
- |
- |
- |
- |
| 2026-01-20 |
Stelzer Laurie |
Director |
RSU Award |
32,000 |
$43.14 |
$1.38M |
32,000 |
| 2025-11-22 |
Hoerter Steven L. |
Director |
RSU Award |
8,000 |
$27.08 |
$216.64K |
8,000 |
| 2025-11-06 |
Hoerter Steven L. |
Director |
RSU Award |
100,000 |
$24.74 |
$2.47M |
100,000 |
| 2025-10-24 |
Hawryluk P. Kent |
President & CEO |
Option Exercise (Sell) |
182,859 |
$3.25 |
$594.29K |
129,708 |
| 2025-10-20 |
Hawryluk P. Kent |
President & CEO |
Informative Buy |
20,000 |
$13.64 |
$272.79K |
468,277 |
| 2025-10-17 |
Hoerter Steven L. |
Director |
Informative Buy |
20,000 |
$13.25 |
$264.98K |
20,000 |
| 2025-09-26 |
Heron Patrick J |
10 Percent Owner |
Informative Buy |
666,666 |
$18.00 |
$12M |
5,219,440 |
| 2025-06-05 |
Cornelius James M |
Director |
RSU Award |
16,000 |
$11.86 |
$189.76K |
16,000 |
| 2025-06-05 |
Mathers Edward T |
10 Percent Owner |
RSU Award |
16,000 |
$11.86 |
$189.76K |
16,000 |
| 2025-06-05 |
Heron Patrick J |
10 Percent Owner |
RSU Award |
16,000 |
$11.86 |
$189.76K |
16,000 |
| 2025-06-05 |
Pescovitz Ora H. |
Director |
RSU Award |
16,000 |
$11.86 |
$189.76K |
16,000 |
| 2025-06-05 |
Hoerter Steven L. |
Director |
RSU Award |
16,000 |
$11.86 |
$189.76K |
16,000 |
| 2025-06-05 |
Aynechi Tiba |
Director |
RSU Award |
16,000 |
$11.86 |
$189.76K |
16,000 |
| 2025-06-05 |
Ryder Steven |
Director |
RSU Award |
16,000 |
$11.86 |
$189.76K |
16,000 |
| 2025-04-08 |
Pescovitz Ora H. |
Director |
Informative Buy |
7,693 |
$5.89 |
$45.31K |
24,329 |
| 2025-04-07 |
Hoerter Steven L. |
Officer |
Unknown |
- |
- |
- |
- |
| 2025-04-07 |
Hoerter Steven L. |
Director |
RSU Award |
32,000 |
$6.00 |
$192K |
32,000 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
